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Finding the Fourth Proportional to 66,136.34, 91,263.43 and 37,447.76

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Solution

The fourth proportional to 66,136.34, 91,263.43 and 37,447.76 is: 51,675.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,136.34 : 91,263.43 = 37,447.76 : x
  2. Step 2: Convert to fraction form
    66,136.34/91,263.43 = 37,447.76/x
  3. Step 3: Cross multiply
    66,136.34x = 91,263.43 × 37,447.76
  4. Step 4: Simplify right side
    66,136.34x = 3,417,611,023.42
  5. Step 5: Solve for x
    x = 3,417,611,023.42/66,136.34
  6. Step 6: Final answer
    x = 51,675.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.